A class of DFT polyphase filter banks for orthogonal multiple carrier data transmission

Author

Wintermantel, J. ; Fliege, N.J.

Author_Institution

Tech. Univ. of Hamburg, Germany

Volume

3

fYear

1992

fDate

10-13 May 1992

Firstpage

1332

Abstract

Based on a polyphase IFFT filter bank in the transmitter and a polyphase FFT filter bank in the receiver, orthogonal multiple carrier (OMC) data transmission with high computational efficiency and high bandwidth efficiency can be achieved. The orthogonality is conditioned by an ideal sampling of the receive vector at proper time instants. The authors discuss the effect of the filter transfer function characteristic on the amount of signal distortion due to nonideal timing recovery (timing synchronization) in the receiver. A special class of Nyquist systems is introduced, and an optimum low-pass filter transfer function for the polyphase filter bank of the OMC data transmission system is given

Keywords

data communication equipment; digital filters; fast Fourier transforms; filtering and prediction theory; signal processing; transfer functions; DFT polyphase filter banks; FFT filter; Nyquist systems; filter transfer function characteristic; ideal sampling; low-pass filter; nonideal timing recovery; orthogonal multiple carrier data transmission; receive vector; signal distortion; timing synchronization; Bandwidth; Computational efficiency; Data communication; Distortion; Filter bank; Low pass filters; Sampling methods; Timing; Transfer functions; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on

Conference_Location

San Diego, CA

Print_ISBN

0-7803-0593-0

Type

conf

DOI

10.1109/ISCAS.1992.230258

Filename

230258